I've seen just the '29 cowl band (without the mounting strip that is permanently attached to the cowl section) go from a low of $100 for an unrestored "take-off" up to a high of $600 for one that was straightened and plated. They are brass and are easily damaged because of the softness of the metal.
As I recall, I've got about $600 in mine by the time I had it plated by that outfit in Wisconsin that advertises in Hemmings, and then paying a body guy to install it.
Financing was managed by making it a Christmas present.